EXPLORE

Teacher Activities
  
Student Activities

Explore the collected data by participating in activities that evaluate the state of coral reefs images in Kailua Bay. Students analyze the state of coral reefs in Kailua Bay based on classification maps.

Remind students about the AVIRIS image and Study Area image collected.

Prompt students to think about why they need to have ground truthing images to evaluate the coral reefs in Kailua Bay.

  • Can we determine the state of coral reefs with these two images?
  • If not, which data do we need? Which resolution images do we need to have?
  • How can we get the high resolution image?

Breaks students into several groups.

Have each team explore the ground truthing image including ground truthing photographs.

Teacher Note: Ground truthing photographs are not remote sensing images. They are collected when more detailed investigation is required.

Ask each group to explore the state of coral reefs in Kailua Bay and write the results of their investigation in the Student activity sheet: Exploring the state of coral reefs with ground truth photographs (AI-3).

Prompt students to think about whether there is a better way to evaluate the state of coral reefs and introduced the concept of classification and let them know they will use four categories as a classification scheme.

 

Ask each group to decide where each ground truthing photograph will be placed among four categories and write their answers in the Student activity sheet: Deciding the classification categories.

 

Ask each group to present their results.

  • Each team presents their investigation results.

Provide students with (1) DMSV image for the study area, (2) the classification map of study area, and (3) pie chart.

Ask students to discuss the similarities and differences between their classification categories and the actual classification categories.

Summarize the lesson and introduce the next step: analyzing the change of the state of coral reefs in Kailua Bay.

Teacher Resources:

  

 

 

 

Sample activity

  • Students view the image.

 

 

Sample student responses:

  • Yes/ NO
  • We need a higher resolution image.

  • We can take high-resolution images when collecting images. Or we can also take ground truth photographs as well.

 

 

 

 

 

 

Sample activity

  • Students view the image.

 

 

 



 

  • Each group presents their exploration results.


  • Students view the image.


  • Students discuss the similarities and differences between their classification categories and the actual classification categories.